House Extensions · SW15 Putney
Fixed-fee house extension drawings for Putney, West Putney, Roehampton, Putney Heath in the SW15 postcode, drawn by an MCIAT-chartered architectural technologist and submitted to Wandsworth Council. Wandsworth controls the West Putney and Embankment conservation areas; the hillside terraces and inter-war semis are a strong extension market.
MCIAT chartered drawings for planning, building regs, lofts and extensions — fixed fees 30% below typical London architects. Tell us what you need and we’ll reply the same working day.
House extensions in Putney are dominated by single-storey rear and side-return additions on SW15's victorian and edwardian terraces near putney centre, with double-storey and wrap-around schemes where the plot allows. Wandsworth Council weighs depth, height and neighbour daylight; many extensions across Putney, West Putney, Roehampton, Putney Heath are Permitted Development, which we confirm with a Lawful Development Certificate before you build.
The whole spectrum — rear extensions, side returns, wraparounds, double-storey, basement digs. Planning-led design with detailed technical phase, ideal for victorian and edwardian terraces near putney centre typical of Putney.
Across Putney, West Putney, Roehampton, Putney Heath in SW15, the dominant property is victorian and edwardian terraces near putney centre, inter-war semis up the hill, and large houses and post-war estates around roehampton. That stock shapes what house extension drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Wandsworth Council judges each on design quality and neighbour impact. We survey the specific Putney property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the SW15 streetscape.
Housing stock in SW15: Victorian and Edwardian terraces near Putney centre, inter-war semis up the hill, and large houses and post-war estates around Roehampton.
Within the district: Putney, West Putney, Roehampton, Putney Heath.
Streets we know in SW15: the West Putney roads (Howards Lane, Carlton Drive), Putney Hill and the Dover House Estate. Each road has its own building line, boundary treatment and precedent that Wandsworth Council weighs when assessing a house extension drawings scheme.
Conservation areas: Putney Embankment, West Putney, Dover House Estate. Inside these, most external work needs full planning and a Heritage Statement.
Getting around SW15: East Putney on the District line and Putney rail to Waterloo, plus the riverbus.
Property values: around £550,000 for a flat and £1.1m-£1.7m for a house — a useful gauge of the build value an extension or loft adds in SW15.
Borough character: Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications.
Measured existing survey, photographic record, Article 4 and conservation check specific to Putney before we quote.
2–3 design options at concept stage — alternative layouts, glazing, roof forms.
Site location plan, existing and proposed plans, elevations, sections, D&AS where required.
Part L thermal, Part B fire, Part M accessibility, structural strategy.
Steel beam, foundation, lintel design. Chartered engineer sign-off.
Party Wall notices where needed; Thames Water Build Over Agreement where within 3m of a public sewer.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.
Yes. The Victorian and Edwardian terraces and inter-war semis around Howards Lane and Carlton Drive suit side-return, rear and double-storey extensions plus loft conversions, much of it within Permitted Development outside the conservation areas. We confirm the route and draw to Wandsworth's validation checklist.
Yes. The Putney Embankment conservation area and the Thames frontage carry both conservation control and flood-risk requirements, so riverside changes need full planning and a flood-risk assessment. We design within those constraints and produce the survey and heritage drawings required for SW15 riverside addresses.
Usually yes on the terraces and semis — a hip-to-gable plus rear dormer within the volume allowance, confirmed by a Lawful Development Certificate, provided you're not in the West Putney or Embankment conservation areas. We check the constraints for your road and draw it for Building Control.
The Dover House (Putney Garden) Estate is a designated conservation area of cottage-style housing with strong character controls, so extensions there are assessed tightly on form and materials. We design sympathetically and submit a full application with a Heritage Statement where required.
Our fixed fee for house extension drawings in Putney starts at £1,225 — no hourly billing. With Putney property at around £550,000 for a flat and £1.1m-£1.7m for a house, the professional drawing fee is a small fraction of the value the work adds to SW15's victorian and edwardian terraces near putney centre. Wandsworth Council charges its own statutory application fee on top (currently £258 for a householder planning application, £578 for a full application). We quote the drawings as one fixed price and the free site survey covers every SW15 address.
For a SW15 project across Putney, West Putney, Roehampton, Putney Heath, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Wandsworth Council (8 weeks for a householder application). We carry the Putney application through every officer query to the decision.
Putney (SW15) sits primarily in Wandsworth, so applications are decided by Wandsworth Council. Article 4 in force in the borough: Yes. Conservation areas within SW15 include Putney Embankment, West Putney, Dover House Estate, where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind house extension drawings in Putney — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Wandsworth Council Building Control or an approved inspector. On SW15's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. With Putney (SW15) property at around £550,000 for a flat and £1.1m-£1.7m for a house, a well-designed extension or loft typically returns more than it costs in added floor area and sale value, while our fixed drawing fee from £1,225 keeps the professional cost predictable. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on SW15 homes.
From £840.
From £840.
From £1,225.
From £1,575.
From £995.
From £1,950.
From £350.
From £540.
From £450.
From £1,225.
Pick a slot that suits you. No obligation and no sales pressure — just straight answers on your planning route, fixed fee and timescale.
Every SW15 postcode district we draw in, the stock that dominates it and the authority that validates a house extension there. SW15 fees below are the statutory England rates for 2026, not house extension estimates.
| Postcode | Area | Dominant stock | What it means for a house extension |
|---|---|---|---|
| SW15 | Putney / Roehampton | Edwardian terraces, Victorian villas, mansion blocks | A house extension at an SW15 address in Putney / Roehampton is determined by Wandsworth Council under its own Local Plan policies for Putney / Roehampton. |
| SW15 | Putney | Edwardian terraces, Victorian villas, mansion blocks | Putney sits inside SW15; house extension proposals here are determined by Wandsworth Council. |
| SW15 | Roehampton | Post-war estates, Georgian villas | Roehampton sits inside SW15; house extension proposals here are determined by Wandsworth Council. |
| SW11 | Battersea / Clapham Junction | Victorian terraces, mansion blocks | Adjoining district to SW15, also inside Wandsworth for house extension purposes. |
| SW12 | Balham | Victorian and Edwardian terraces | Adjoining district to SW15, also inside Wandsworth for house extension purposes. |
| SW17 | Tooting / Earlsfield | Edwardian terraces | Adjoining district to SW15, also inside Wandsworth for house extension purposes. |
Roof pitch, wall build-up and plot depth change every few SW15 streets, and each one changes what a house extension can achieve at that address.
SW15 (Putney / Roehampton) conservation designations: there are 45 across Wandsworth Council, Wandsworth Common, Clapham Common West, Tonsley among them. Designation costs a SW15 (Putney / Roehampton) owner the permitted-development route: a house extension then needs a £258 householder application over 8 weeks, in place of the £120 prior approval route that takes 6 weeks. Tonsley is the SW15 (Putney / Roehampton) designation that most often changes a house extension design.
Article 4 and your SW15 (Putney / Roehampton) house extension: Article 4 for HMO conversions covering the whole borough. At a SW15 address that matters twice over, because Wandsworth Council applies the direction unevenly across SW15 (Putney / Roehampton) — we read the SW15 (Putney / Roehampton) policies map for the exact SW15 address before quoting house extensions.
What SW15 (Putney / Roehampton) is built from: Extensive Victorian terraced streets — the classic London side-return extension opportunity; Edwardian villas around the commons; 1930s semi-detached in Southfields. Family-oriented, high side-return extension and loft conversion rates; planning department experienced with Victorian terrace modifications. That mix decides the house extension route in SW15 (Putney / Roehampton) more than the postcode does. Our fixed fee for house extensions in SW15 (Putney / Roehampton) starts at £1,225, against £1,750 for the Complete package that carries a SW15 (Putney / Roehampton) scheme through Wandsworth Council planning and building regulations together.
Sources for this SW15 house extension page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
Free fixed quote in 60 seconds. From £1,225. MCIAT chartered.
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